Thoreau writes in his journal:
C. [William Ellery Channing] picks up at Clamshell a very thin piece of pottery about one eighth of an inch thick , which appears to contain much pounded shell . . .
Pratt says that his bees come out in a pleasant day at any time in the winter; that of late they have come out and cased themselves, the ground being covered around the hives with their yellow droppings . . .